import type { SqliteDatabase } from '../db/adapter.js';
import type { SkillCandidate, SkillMaterializationAuthorization, SkillRegistryProvider, SkillSnapshot, SkillSourceFetcher, SkillSourceFetchRequest } from './types.js';
export declare const DEFAULT_EXTERNAL_SKILL_FAILURE_TTL_MS: number;
export declare const MAX_EXTERNAL_SKILL_RETRY_AFTER_MS: number;
export declare function externalSkillFailureTtlMs(retryAfterSeconds: number | null): number;
export interface MaterializableSkillSnapshot {
    snapshot: SkillSnapshot;
    authorization?: SkillMaterializationAuthorization;
}
/**
 * Apply exact provider-audit and GitHub-source backoff before retrieving a
 * snapshot. Cache rows are operational denial state; they never authorize a
 * materialization and a stored passed audit label is deliberately ignored.
 */
export declare function fetchMaterializableSkillSnapshot(database: SqliteDatabase, candidate: SkillCandidate, dependencies: {
    provider: SkillRegistryProvider;
    sourceFetcher: SkillSourceFetcher;
    sourceRequest: SkillSourceFetchRequest;
    now?: string;
    cacheWrite?: <T>(operation: () => T) => Promise<T>;
}): Promise<MaterializableSkillSnapshot>;
//# sourceMappingURL=materialization-service.d.ts.map